Neural - Vascular Development: Difference between revisions
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See the historic article on human vascular development by George L. Streeter [[Book - Contributions to Embryology Carnegie Institution No.24|The Developmental Alterations in the Vascular System of the Brain of the Human Embryo (1921)]] | See the historic article on human vascular development by George L. Streeter [[Book - Contributions to Embryology Carnegie Institution No.24|The Developmental Alterations in the Vascular System of the Brain of the Human Embryo (1921)]] | ||
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<pubmed limit=5>Neural Vascular System Development</pubmed> | <pubmed limit=5>Neural Vascular System Development</pubmed> | ||
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==Cerebral Blood Supply Development== | |||
[[File:Cerebral blood supply development 01.jpg|800px]] | |||
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Embryonic stage | |||
* [[Carnegie stage 13|4-5 mm]] - hindbrain (i.e., future posterior fossa) is supplied by two parallel neural arteries (or channels). These arteries obtain their blood supply from carotid-vertebrobasilar anastomoses given by the trigeminal artery (TA), the otic artery (OA), hypoglossal artery (HA), and the proatlantal artery (ProA) | |||
* [[Carnegie stage 14|5-8 mm]] - basilar artery (BA) forms from the consolidation of the neural arteries. | |||
* [[Carnegie stage 15|7-12 mm]] - vertebral arteries (VA) forms from transverse anastomoses between cervical intersegmental arteries, beginning with the ProA and proceeding downward to the 6th intersegmental artery, | |||
* [[Carnegie stage 16|11-12 mm]] - (35 days) development of the MCA is first identified as small buds originating proximal to the ACA on the anterior division of the primitive ICA. | |||
* [[Carnegie stage 19|16-18 mm]] - MCA becomes more prominent, the plexi fuse into a single artery and further branches pierce the cerebral hemisphere. | |||
* 18 mm - stem of the ACA gives rise to the olfactory artery. | |||
* [[Carnegie stage 21|21-24 mm]] - formation of the anterior communicating artery (ACOMM). | |||
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* '''A''' - In early phases of development the posterior circulation relies almost entirely from blood supply coming from the anterior circulation through carotid-vertebrobasilar anastomoses. | |||
* '''B and C''' - As the posterior fossa structures and the occipital lobe grow, the posterior circulation becomes progressively independent from the anterior circulation with obliteration of the anterior-posterior anastomoses from caudal to rostral maintaining in the majority of adult only one connection between the distal basilar arteries with the carotid artery via the posterior communicating artery. | |||
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(above text modified from reference<ref name="PMID26060802"><pubmed>26060802</pubmed>| [http://synapse.koreamed.org/DOIx.php?id=10.5853/jos.2015.17.2.144 J Stroke.]) | |||
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Introduction
Draft Page
See the historic article on human vascular development by George L. Streeter The Developmental Alterations in the Vascular System of the Brain of the Human Embryo (1921)
Some Recent Findings
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Cerebral Blood Supply Development
Embryonic stage
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(above text modified from referenceCite error: Closing </ref>
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References
- ↑ <pubmed>25733312</pubmed>
- ↑ <pubmed>22993505</pubmed>| PMC3440694 | Front Neuroanat.
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Cite this page: Hill, M.A. (2024, March 29) Embryology Neural - Vascular Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Neural_-_Vascular_Development
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